Fred w



(No Model.)

I. W. MoARDLEi SOLE LEVELING MACHINE. No. 542,570. 6 Pat nted July 9, 1895.

||||m||"l WITNESSEE: v INVENTDRZ sy- 372 yaw finite STATES AT FFICEr OI JUDD, OF SAME PLACE;

SOLE-LEVELING MACHINE.

LsPECIFICATION forming part of Letters Patent N 0. 542,570, dated July 9, 1895.

Application filed October 9, 1893 Serial No. 487,607. (No model.)

soles of boots and shoes; and to accomplish this object my invention consists in the features of construction and the combination or arrangement of parts hereinafter described" and claimed, whereby a jack which rocks only in one direction can be used. and a reciproeating leveling-roll mounted on a rocking frame is automatically tilted from end to end.

The invention is illustrated by the accompanyingdrawings, in which- Figure 1 shows a rear elevation. Fig.2

shows a central longitudinal section. Fig. 3

shows a detail section view illustrating the manner of connecting the treadle with the rocking roll-supporting frame.

The same letters and figures of reference indicate the same parts in all the figures.

v In the drawings, the letter a designates the stationary supporting-frame of the machine, to which is pivoted a yoke b,-directly supporting standards 1), which receive the last 2. Said yoke is so pivoted as to oscillate in the direction of length of the last, and the means employed to produce oscillation of this yoke consist in a single power or driving shaft 0, a vertical shaft 0' in gear therewith and carrying a worm 0 a counter-shaft 0 carrying a gear 0 in mesh with said worm, and a crank,

and a rod 0 connecting said crank with an arm 0 of the yoke 17.

A vertically-swinging frame, composed of side-arms d, pivoted to a cross-head d','is located above the rocking yoke or jack, and is adapted also to oscillate from side to side, being supported by a journal d fittinga beari'ng in-the frame a and fastened in the crosshead (51. Said frame is oscillated through the following connections with the driving-shaft: A crank 01 is affixed to the journal 0?, and is connected by a pitman d with a crank 01? on a shaft 61, supported in a bearing which is fastened to the frame a and connected through bevel-gears d with the counter-shaft 0 A leveling-roll e is supported in a vibratory rollcarrier, composed of arms 8, pivoted intermediate of their ends to the arms (I. This roller extends crosswise of the oscillatory frame, so that the oscillations of the latter cause the roll to be tilted from end to end. The roll is at .the same time reciprocated or oscillated longitudinally of the shoe-sole by the vibratory motion of the carrier 6 on the frame d, which is effected by connections between the carrierand the single driving-shaft, as I will now explain. An eccentricf, affixed to the shaft 0, coacts with a pitman f, which is jointed to one arm of'a bell-crank lever f whose other arm is jointed to a rod f This rod is journaled in a boss formed at the middle of a bifurcated arm f whose armsare jointed to the arms 6, respectively, the axis of said bifurcated arm being in the line of the axis of the journal 01 so that oscillations of said journal, and consequently of the frame d, do not affect the connections between the roll-carrier and the driving-shaft.

It will be seen that with the arrangement described the rocking of the jack will cause the sole on the last to be subjected throughout its length to the action of the levelingroll, while the tilting of the roll distributes its action throughout the width of the sole and that the roll is being rocked on the pivot of its carrier at the same time.

Yielding pressure of the leveling-roll on the sole is applied by means of a treadle h through the following connections: Rods h are fastened at their upper ends to the arms d, respectively, and at their lower ends extend through a cross-head h, below which they carry nuts h and springs it between the cross-head and said nuts. The cross-head has a socket at the middle, which is engaged by a partly-spherical block or washer if, and the treadle is connected with said washer by a rod h.

It will be observed that by the construction above described auniversal joint is provided be varied Without departing from the spirit' and scope of the invention.

It will be observed that the arm 0 and rod 0 and their operating devices constitute mechanism operating automatically to change the relative longitudinal position of the roll and jack, and that the roll-carrier, pivoted at 1 and its pitman d constitute connections for changing the relative lateral inclination of the roll and jack, said connections being separate from the mechanism for changing the relative longitudinal position thereof.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is- Y 1. A sole-leveling machine combining in its structure the following elements, to wit: a rocking jack, a pivoted roll-frame or holder, a vibratory roll-carrier pivotally mounted on the roll-frame or holder and carrying a leveling roll which is tilted by the rocking motion of the roll-frame or holder, a single powershaft, and independent mechanismsall driven by said power-shaft and respectively in operative connection with the said jack, the vibratory roll-carrier, and the roll-frame or holder, for automatically and continuously vibrating the roll-carrier and rocking the jack and rollframe or holder, substantially as described.

2. A sole-leveling machine combining in its structure the following elements, to wit: a jack which rocks in one direction only, a pivotal roll-frame or holder extending over the jack and adapted to rock in a vertical plane and to rise and fall, a vibratory roll-carrier pivoted to the roll-frame or holder, a levelingroll mounted on the pivoted roll-carrier, a single power-shaft, and three independent mechanisms driven by the power-shaft and respectively in operative connection with the rollframe or holder, the pivoted vibratory rollcarrier, and the jack, substantially as described.

3. The combination of a jack which rocks in one direction only, a vertically swinging and rocking roll-frame having a jointed connection with a journal provided with a crank, a reciprocating leveling-roll mounted on the roll-frame, a single drive-shaft, a pitman connected with the crank on the journal of the rocking-frame and actuated by connections with the said drive-shaft for automatically rocking the roll-frame, a swinging-lever havinga pitman and eccentric connection with the drive-shaft for reciprocating the levelingroll, a crank on the axis of the rocking-jack, and connections between the said drive-shaft and the crank on the axis of the jack, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 5th day of October, A. D. 1893.

FRED W. MCARDLE. Witnesses:

A. D. HARRISON, PARKER DAVIS. 

